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Relationship Between Depression And Cardiopulmonary Fitness

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ABSTRACT RELATIONSHIP BETWEEN DEPRESSION AND CARDIOPULMONARY FITNESS IN POST CARDIAC SURGERY INDIVIDUALS Objective: To know the relationship between depression and cardiovascular fitness in post cardiac surgery patients after phase 1of cardiac rehabilitation. Methodology: Observational study was done on 30 samples. The patients who underwent cardiac surgery were taken up for the study. After phase 1 of cardiac rehabilitation, samples were screened for depressive symptoms using CES-D scale and 6 minute walk test to predict peak oxygen consumption (VO2peak). Results: Correlation analysis was done between CES-D and VO2peak. The negative correlation coefficient of -0.951, with significance at p<0.000 was obtained. Conclusion: There exists a …show more content…

The occurrence of depression has been found to be independently associated with poor outcome, including poor quality of life, increased heart disease, and probably increased mortality. There is some evidence that those who have the severe heart disease are at greatest risk of an adverse outcome attributable to depression. Depression is an important independent contributor to medical and psychosocial morbidity up to 6 months after CABG.4 The causes of development of depression in cardiac disease can be attributed to the stress after surgery and development of depression in reaction to the illness 5. Stress has been shown to be one of the most potent triggers or inducers of depression6. With stress, the hypothalamicpituitary-adrenocortical (HPA) axis and the sympatheticadrenomedullary (SA) system are activated, which leads to release of Catecholamines ( epinephrine and norepinephrine). Catecholamines increase alertness. Especially epinephrine usually evokes more anxiety and fear.7 With resolution of stress, these 2 systems should return to their basal states. Genetic predisposition, such as specific serotonin transporter gene polymorphisms, coupled with gene– environment interaction may explain why some individuals recover from life stressors and others develop the disease of depression.8 Another possibility is that depression is a secondary development in cardiac patients, whereby patients with more

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